Postcode record · Hillingdon
HA6 3SA.
HA6 3SA has 13 known premises and 18 planning records — 15 approved of 16 decided (93.8%). 5 EPC records.
Postcode HA6 3SA · boundary not held, centred on the postcodeApprovedRefusedOther18 exact18 on the map — every match
At a glance · this postcodeHillingdon profile →
13
Premises
known addresses (UPRNs)
18
Applications
16 decided
93.8%
Approval rate
15 approved · 1 refused
5
EPC records
ratings C 4 · D 1
18
Mapped applications
inside the postcode shape
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property
What is it?
HA6 3SA has 13 known premises and 18 planning records — 15 approved of 16 decided (93.8%). 5 EPC records.
Premises
Name
Details
UPRN 100021442302
UPRN 100021442303
UPRN 100021442304
UPRN 100021442305
UPRN 100021442306
UPRN 100021442307
UPRN 100021442308
UPRN 100021442309
UPRN 100021442310
UPRN 100021442311
UPRN 100021442302
UPRN 100021442303
UPRN 100021442304
Show all 10 rows
UPRN 100021442305
UPRN 100021442306
UPRN 100021442307
UPRN 100021442308
UPRN 100021442309
UPRN 100021442310
UPRN 100021442311
Planning
What happened?
18 planning applications across the postcode; 15 approved of 16 decided (93.8%). Latest 18 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Conversion of roof space to habitable use to include 2 x side dormers, roof lights on each side roof slope, one side window on each side dormer, and alterations to vent pipes (Application for a Certificate of Lawful Development for a Proposed Development).
11 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Agent - CITY LOFTS LONDON · Officer Sharon Singh
Planning Application
Approved
2026-02-17
Conversion of roof space to habitable use to include side dormer, erection of infill extension to the side and rear, conversion of garage to habitable use, addition of roof lights
11 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Agent CITY LOFTS LONDON · Officer Sharon Singh
Planning Application
Approved
2025-10-14
To carry out tree surgery including a height reduction by 20% to One Horse Chestnut T119, a height reduction to One Ash T120 and a 30% height reduction to One Cypress within Group 18 all on TPO 152
GORDALE, 7 BAYHURST DRIVE NORTHWOOD HA6 3SA · premises record
Officer Martina Gorla
Tree Works (TPO)
Split
2021-07-05
Single storey side/rear extension and conversion of garage to habitable use
4 BAYHURST DRIVE NORTHWOOD · premises record
Officer Diane Verona
Planning Application
Approved
2020-02-03
Conversion of roof space to habitable use to include a rear dormer, 3 x front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
4 BAYHURST DRIVE NORTHWOOD · premises record
Officer Diane Verona
Planning Application
Approved
2020-02-01
To carry out tree surgery, including cutting overhanging branches back to the boundary line to one cypress, T134 on TPO 152.
8 BAYHURST DRIVE NORTHWOOD · premises record
Officer Sophie Coughlan
Tree Works (TPO)
Approved
2019-08-28
Conversion of roof space to habitable use to include 3 rear roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
10 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Agent Mr EDWARD BARRON · Officer Victor Unuigbe
Planning Application
Approved
2016-01-12
Part conversion of double garage to habitable use involving alteration to front and installation of rooflights to garage roof and alteration to fenestration to rear and side
5 BAYHURST DRIVE NORTHWOOD · premises record
Agent Mr Richard Drabble Clyst Hill Avenue Hazlemere Bucks HP15 · Officer Liz Arnold
Planning Application
Approved
2015-07-23
Two storey side extension, two storey rear extension, infill extension to side and porch to front involving demolition of existing conservatory to side
10 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Officer Obafemi Okusipe
Planning Application
Refused
2015-05-05
To carry out tree surgery, including a crown reduction by about 2m by cutting back to 25-50mm beyond previous pruning points, to one Horse Chestnut (T119) on TPO 152.
7 & 10 BAYHURST DRIVE NORTHWOOD HA6 3SA · premises record
Agent Dr Rhiannon Mitchell Gordale · Officer Trevor Heaps
Tree Works (TPO)
Approved
2014-03-18
Conversion of roof space to habitable use to include 2 x side dormers, roof lights on each side roof slope, one side window on each side dormer, and alterations to vent pipes (Application for a Certificate of Lawful Development for a Proposed Development).
11 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Agent - CITY LOFTS LONDON · Officer Sharon Singh
Approved
2026-02-17
More
Planning Application
Conversion of roof space to habitable use to include side dormer, erection of infill extension to the side and rear, conversion of garage to habitable use, addition of roof lights
11 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Agent CITY LOFTS LONDON · Officer Sharon Singh
Approved
2025-10-14
More
Planning Application
To carry out tree surgery including a height reduction by 20% to One Horse Chestnut T119, a height reduction to One Ash T120 and a 30% height reduction to One Cypress within Group 18 all on TPO 152
GORDALE, 7 BAYHURST DRIVE NORTHWOOD HA6 3SA · premises record
Officer Martina Gorla
Split
2021-07-05
More
Tree Works (TPO)
Show all 10 rows
Single storey side/rear extension and conversion of garage to habitable use
4 BAYHURST DRIVE NORTHWOOD · premises record
Officer Diane Verona
Approved
2020-02-03
More
Planning Application
Conversion of roof space to habitable use to include a rear dormer, 3 x front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
4 BAYHURST DRIVE NORTHWOOD · premises record
Officer Diane Verona
Approved
2020-02-01
More
Planning Application
To carry out tree surgery, including cutting overhanging branches back to the boundary line to one cypress, T134 on TPO 152.
8 BAYHURST DRIVE NORTHWOOD · premises record
Officer Sophie Coughlan
Approved
2019-08-28
More
Tree Works (TPO)
Conversion of roof space to habitable use to include 3 rear roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
10 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Agent Mr EDWARD BARRON · Officer Victor Unuigbe
Approved
2016-01-12
More
Planning Application
Part conversion of double garage to habitable use involving alteration to front and installation of rooflights to garage roof and alteration to fenestration to rear and side
5 BAYHURST DRIVE NORTHWOOD · premises record
Agent Mr Richard Drabble Clyst Hill Avenue Hazlemere Bucks HP15 · Officer Liz Arnold
Approved
2015-07-23
More
Planning Application
Two storey side extension, two storey rear extension, infill extension to side and porch to front involving demolition of existing conservatory to side
10 BAYHURST DRIVE NORTHWOOD MIDDX HA6 3SA · premises record
Officer Obafemi Okusipe
Refused
2015-05-05
More
Planning Application
To carry out tree surgery, including a crown reduction by about 2m by cutting back to 25-50mm beyond previous pruning points, to one Horse Chestnut (T119) on TPO 152.
7 & 10 BAYHURST DRIVE NORTHWOOD HA6 3SA · premises record
Agent Dr Rhiannon Mitchell Gordale · Officer Trevor Heaps
Approved
2014-03-18
More
Tree Works (TPO)
Building control
Building-control records are not yet collected for Hillingdon — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 13 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 13 of 13 premises. Some normally permitted changes may require planning permission.
Conservation Area
Northwood, Frithwood · reference CA-15 · covers 1 of 13 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 13 of 13 premises. Some normally permitted changes may require planning permission.
Conservation Area
Northwood, Frithwood · reference CA-15 · covers 1 of 13 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
People
Who is involved?
Named on the latest 18 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 2 applications
Case officer on 2 applications
Case officer on 2 applications
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Show all 10 rows
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 2 applications
Case officer on 2 applications
Case officer on 2 applications
Development
What could it become?
Planning precedent18 applications and 18 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy5 EPC records; ratings C: 4, D: 1.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
Planning Atlas ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.